CN102599636A - Preparation method of reconstituted tobacco from tobacco stem and tobacco powder - Google Patents
Preparation method of reconstituted tobacco from tobacco stem and tobacco powder Download PDFInfo
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- CN102599636A CN102599636A CN2012100621845A CN201210062184A CN102599636A CN 102599636 A CN102599636 A CN 102599636A CN 2012100621845 A CN2012100621845 A CN 2012100621845A CN 201210062184 A CN201210062184 A CN 201210062184A CN 102599636 A CN102599636 A CN 102599636A
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Abstract
The invention discloses a preparation method of reconstituted tobacco from tobacco stem and tobacco powder by papermaking method. The method comprises soaking to extract tobacco stem and tobacco powder, and filtering to obtain extractive solution and residue; subjecting the residue to pulping, sheet-making, squeezing and drying to obtain sheet base; and coating the extractive solution on the sheet base. The invention performs systematic research on squeezing process, provides suitable squeezing process conditions, effectively improves physical properties, chemical composition, tensile index, tearing index, bulkiness, density, air permeability, filling value, wettability and permeability of tobacco sheet base, comprehensively improves surface properties and interior structure of sheet base, and improves operation performance and effectiveness of tobacco sheet base production line.
Description
Technical field
The invention belongs to the production of cigarettes technical field, be specifically related to a kind of preparation method of offal offal system reconstituted tobacco.
Background technology
In tobacco redrying and production of cigarettes process, can produce tobacco wastes such as the offal that accounts for former cigarette material total amount 1/3, offal.China has the offal resource of few hundred thousand tonnes of to go out of use every year, causes the waste and the environmental pollution of resource.
Reconstituted tobacco is the reconstituted tobacco that utilizes tobacco wastes such as the offal that produces in the tobacco processing course, offal to produce through certain processing technique.Advantages such as the reconstituted tobacco that paper process is produced has that density is little, the filling value is big, good mechanical property, tar content are low are the main production technologies of present reconstituted tobacco.Therefore, the processing technology of paper process has played crucial effect to the sucking quality and the physical property of reconstituted tobacco.
Use offal and offal and prepare the focus that reconstituted tobacco is present present technique area research; Proportion research about offal and offal in the reconstituted tobacco technology of preparing; Mainly concentrate on dipping and extract and the thermodynamic analysis aspect, do not have to consider that other critical process conditions are to the significant effects such as physical property, chemical composition and fume indication of paper substrate in preparation reconstituted tobacco process comprehensively.
Squeezing is the requisite production process of reconstituted tobacco paper substrate moulding, and reconstituted tobacco production line squeezing step is carried out mechanical dehydration to sheet paper base, and squeezing is the critical process that influences the reconstituted tobacco performance.Therefore, squeezing has very important influence to the performance of reconstituted tobacco.At present, less to squeezing the research relevant report that influences the reconstituted tobacco paper substrate both at home and abroad.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of preparation method of offal offal system reconstituted tobacco is provided.
The object of the invention is achieved through following technical scheme:
A kind of preparation method of offal offal system reconstituted tobacco is provided, adopts paper process to prepare, dipping extracts offal and offal, mistake and filters extract and the offal slag after impregnation process, offal slag; Offal slag, offal slag through defibrination, copy sheet, squeezing and dry sheet paper base; Extract returned as coating fluid be coated onto on the thin section for tobacco paper substrate; The pressure of said squeezing is 0～0.4MPa.
Preferably, the pressure of said squeezing is 0～0.2MPa.
More preferred squeeze pressure condition is 0.1MPa.
In the squeeze pressure condition is 0.1MPa, preferably about 7 minutes of the total time of squeezing.
Preferably, the main process condition of said preparation method is following:
(1) dipping extracts offal and offal;
The condition that said offal dipping extracts is that solid-liquid ratio 1: 7 (mass ratio), extraction temperature are 60 ℃, and extraction time is 100 minutes (min); The condition that said offal dipping extracts is a solid-liquid ratio: 1: 10, extract 70 ℃ of temperature, extraction time 60min; The offal that after impregnation process, obtains and the extract of offal use as coating fluid; Offal after the impregnation process, offal slag are equipped with defibrination and use.The present invention also can adopt existing three stage countercurrent extraction processes to extract offal and offal, and offal and offal extract the back through first order extraction, second level extraction and the third level respectively and get into defibrination workshop section.The third level extract adverse current that the third level obtains after extracting and adopting clear water to extract gets into the second level and floods extraction; Second level extract another mistake flows into the first order and extracts experiment; Last first order extract obtains coating fluid through carrying out evaporation and concentration after the preliminary treatment, is coated onto on the thin section for tobacco paper substrate in order to last returning.Three stage countercurrent extraction conditions are: offal: liquor ratio: 1: 7 (mass ratio), temperature: 80 ℃, the time: 40min; Offal: liquor ratio: 1: 10 (mass ratio), temperature: 80 ℃, the time: 30min.In three grades of leaching process, the process conditions of each grade are not made change.
(2) defibrination; Offal after impregnation process, offal carry out three sections defibrinations, and the concentration of preferred defibrination is 20%;
(3) copy sheet;
Offal and offal are through after the dipping defibrination, and the present invention further confirms the ratio that suitable offal slurry and offal are starched, join search and seize the thin section for tobacco paper substrate; Offal slurry is preferably 100: 0 with the mass ratio that offal is starched～and 20: 80, more preferably technical scheme is, and the mass ratio of offal and offal is 100: 0～70: 30, and the mass ratio of optimum offal and offal is 70: 30.
(4) squeezing and the dry sheet paper base that gets;
The pressure of said squeezing is 0～0.4MPa, preferred 0～0.2MPa, and more preferred squeeze pressure condition is 0.1MPa;
The temperature of said drying is 85～115 ℃, and optimum baking temperature is 105 ℃.
Being about total time about 7min of squeezing, the dry time is not done strict the qualification, guarantees dry good the getting final product of reconstituted tobacco paper substrate.
(5) coating fluid that step (1) is prepared returns and is coated onto on the thin section for tobacco paper substrate.Specifically be to be to be that 1: 1 ratio is carried out evaporation and concentration and obtained said coating fluid, be applied to sheet paper base with reference to routine techniques and obtain reconstituted tobacco according to volume ratio with offal and offal extract.
The invention has the beneficial effects as follows:
The present invention has studied the thin section for tobacco paper substrate physical property Changing Pattern of gained under the different squeezing conditions; The performance that squeeze pressure is influenced sheet paper base is comprehensively understood; Bring into play the effect of reconstituted tobacco reducing tar and reducing harm better; The squeezing condition of optimization is provided; Effectively improve physical property, chemical composition, tensile index, tear index, bulk, tightness, permeability, filling value, wetability and the permeance property of thin section for tobacco paper substrate, comprehensively improve the surface property and the internal structure of sheet paper base, improve the runnability and the validity of reconstituted tobacco production line.For the quality that improves reconstituted tobacco provides technical support.
Description of drawings
The SEM figure of sheet paper base under the different squeeze pressures of Fig. 1;
Fig. 2 offal/offal content is to the influence of sheet paper base tensile index;
The SEM figure of different offals of Fig. 3 and offal proportioning sheet paper base;
Fig. 4 three stage countercurrents extract flow chart.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment further explain the present invention.
Experiment is commercial offal of routine and offal with offal, offal picked at random from Guangdong China Tobacco Industry Co.,Ltd's raw materials for production.Offal and offal are refrigerated under 4 ℃ of conditions, and the pack equilibrium water conten is subsequent use.
The dipping of offal and offal extracts, defibrination is handled with reference to existing conventional.
Slurry behind the defibrination adopts Austria to produce the quick handshcet former of PTI and copies the quantitative 70g/m that is
2The thin section for tobacco paper substrate, for the ease of explanation, the offal slurry that present embodiment adopts is 7: 3 with the mass ratio of offal slurry.Carry out drying after adopting the square squeezer of KRK-2570 (Japanese KRK company) to adopt different squeeze pressures to squeeze, the baking temperature that present embodiment adopts is 105 ℃.The scraps of paper were handled 24 hours down in iso standard constant temperature and humidity condition (relative humidity 50 ± 2% and 23 ± 1 ℃ of temperature), surveyed its physical performance index.
1, the mensuration of reconstituted tobacco paper substrate permeability for liquids ability
Dynamically Penetration Signature adopts Penetration Dynamics Analyzer (the PDA.C 02 Module Standard that German EMTEC company produces; Module HVL; EST12) the infiltration kinetic analyzer detects, but the dynamic process that liquid penetrates into the absorbability object is measured on PDA fast and reliable ground.
Wetability Max is meant that the reconstituted tobacco paper substrate is reached the time after the highest by complete wetting and signal strength signal intensity, and it is along with liquid increases in the increase of the paper surface time of staying.This experiment is test liquid with water, and the Max value is big more, and the water repelling property of expression sheet paper base is good more.
To be pattern reached the time of being experienced at 95% o'clock by liquid infiltration and signal strength signal intensity to characteristic value t95; It is with the aqueous solution as test liquid, this moment, the permeability of pattern only received the influence of paper pore structure, hole is more greatly or when open more; Aqueous solution infiltration is fast more; The t95 value is big more, and the surface porosity of expression sheet paper base is more little, and then anti-permeability performance is good more.
2, fibre analysis and SEM (SEM) are observed
Handle carrying out conventional metal spraying after the cutting of write by hand thin section for tobacco paper substrate, use SEM (Hitachi S-3700N) to observe then.
3, assay determination
The mensuration of sheet paper base silk filling value adopts DD-60 to fill pH-value determination pH appearance (German BORGWALDT company) and detects, and measures and carries out according to Y/CT 152-2001.
All the other projects assay determinations are all undertaken by the respective country standard.
The thin section for tobacco paper substrate physical property of gained is as shown in table 1 under the different squeezing conditions.Visible by table 1, when squeeze pressure when 0 is increased to 0.4MPa, the tensile strength of thin section for tobacco paper substrate is increased to 1.51kN/m from 1.10kN/m.When defibrination owing to increased the fibrillating of offal and offal fiber; Not only promoted the combination between the fiber; And the fiber fines that when defibrination, generates is in l Water Paper page or leaf press dewatering, because capillary relation is more prone to contact and produces the hydrogen bond combination.Squeeze pressure increases, and sheet paper base can increase interfibrous contact in the paper substrate when squeezing, increase interfibrous bonded area, thereby can improve the tensile strength and the tensile index of sheet paper base.
Table 1 squeezing is to the influence of thin section for tobacco paper substrate physical property
From table 1, it can also be seen that, improve squeeze pressure, reduce the bulk of sheet paper base simultaneously, improve its tightness, make the ventilative decline of sheet paper base.When the sheet paper base squeeze pressure when 0 is increased to 0.1MPa, the bulk of sheet paper base is from 2.43cm
3/ g drops to 1.99cm
3/ g, the bulk 0.44cm that descended
3/ g.When squeeze pressure when 0.1MPa brings up to 0.4MPa, the bulk of sheet paper base descends and becomes slower.This point also has very big influence for tear index.The applicant combines a large amount of experimental results to sum up, because when improving squeeze pressure, interfibrous adhesion can increase, but bulk can descend, so both comprehensive functions are depended in the variation of tear index.Increase squeeze pressure and can promote offal and the interfibrous combination of offal; But pressure is increased to the bulk that to a certain degree makes page to descend more for a long time; Sheet paper base just has more fiber and is broken rather than from sheet paper base, pull out when tearing; Thereby reduce the tear index of sheet paper base, see shown in the table 1.
Sum up through research, the height of filling value exerts an influence to the hardness of cigarette, the sunken property of cigarette and the sucking quality of cigarette etc.The filling value of the reconstituted tobacco paper substrate silk of gained is as shown in table 1 under the different squeeze pressure conditions.Visible by table 1, the filling value of reconstituted tobacco paper substrate silk is more high than the filling value of pipe tobacco, and the filling value reduces along with the increase of squeeze pressure.When squeeze pressure was 0MPa, sheet paper base became the bulk of paper high under the condition that is not stressed, the maximum (7.23cm of the filling value of sheet paper base
3/ g),, combining grow between fiber and the fiber along with the increase of squeeze pressure, the bulk of sheet paper base descends, and the filling value reduces, and when squeeze pressure was 0.4MPa, the filling value had been reduced to 6.08cm
3/ g.
The surface texture of sheet paper base, permeance property and absorbent play very important influence to the follow-up painting process of sheet paper base.The permeance property of the reconstituted tobacco paper substrate of gained is as shown in table 2 under the different squeeze pressure conditions.
Table 2 squeeze pressure is to the influence of sheet paper base permeance property
The t95 value has characterized the surface pore structure of sheet paper base; Visible by table 2, when squeeze pressure is 0MPa, t95 value minimum (0.442s); The surface porosity that sheet paper base this moment is described is maximum; Not having under the condition of pressure to combine more loosely between the fiber and fiber, add the elasticity that fiber itself is had, make the surface of sheet paper base more natural hole occur; The t95 value increases along with the increase of squeeze pressure gradually, and reduce gradually the surface pore of sheet paper base, when squeeze pressure is 0.4MPa; T95 value maximum (3.165s); The surface porosity that sheet paper base this moment is described is minimum, this is because squeeze pressure increases to 0.4MPa, has promoted combining between the fiber and fiber in the paper; Obtained the relatively sheet paper base surface texture of sealing, be unfavorable for liquid from the sheet paper base surface seepage to inside.
Can find out that from table 2 wetability Max value and t95 value demonstrate close Changing Pattern, all be increase trend along with the increase of squeeze pressure.When squeeze pressure is 0MPa, Max value minimum (0.097s), the permeance property of expression sheet paper base is best; When squeeze pressure increases to 0.4MPa, Max value maximum (0.401s), squeeze pressure increases, and combining between fiber and the fiber becomes closely, and the permeance property of sheet paper base is the phase strain differential also.The Cobb30 value and the Cobb60 value of sheet paper base are as shown in table 2 under the different squeeze pressure conditions.Cobb30 value and Cobb60 value demonstrate close Changing Pattern, all demonstrate reduction trend along with the increase of squeeze pressure.When squeeze pressure was 0MPa, the water absorbing properties of sheet paper base was maximum, and Cobb30 value and Cobb60 value are respectively 26.7g/m
2With 29.0g/m
2When squeeze pressure was 0.4MPa, the Cobb30 value and the Cobb60 value of sheet paper base dropped to 9.7g/m respectively
2With 14.3g/m
2, the water absorbing properties of sheet paper base obviously descends.
Comprehensively above-mentioned; Squeeze pressure increases; The hole on sheet paper base surface reduces gradually, and combining between sheet paper base internal fiber and the fiber becomes closely, is unfavorable for the surface pore infiltration of liquid from sheet paper base; Permeance property variation, the whole absorbent of sheet paper base obviously descend along with the increase of squeeze pressure.
The scanning electron microscope analysis result of reconstituted tobacco paper substrate sees shown in the accompanying drawing 1 under the different squeezing conditions.Accompanying drawing 1 is the cross section SEM figure of thin section for tobacco paper substrate under the different squeeze pressure conditions.In the accompanying drawing 1, a, b, c, d are respectively the cross section SEM figure that squeeze pressure is a thin section for tobacco paper substrate under 0MPa, 0.1MPa, 0.2MPa and the 0.3MPa condition.Visible by accompanying drawing 1, when squeeze pressure was 0MPa, the internal structure of sheet paper base was more loose, and the distance between fiber and the fiber is bigger, and has formed many macrovoids, help air through with the infiltration of liquid; When squeeze pressure was 0.1MPa, the combining of sheet paper base fiber and fiber became closely gradually, and the hole of sheet paper base diminishes; When squeeze pressure was 0.2MPa, the interfibrous combination of sheet paper base had become tightr, but still had some tangible holes; When squeeze pressure was 0.3MPa, the inner hole of sheet paper base had become considerably less, and combining between fiber and the fiber becomes very tight, and it is poor that gas permeability becomes, and be unfavorable for that very liquid is in the inner infiltration of paper substrate.Therefore, low pressure squeeze power (＜0.2MPa) under the condition, can obviously improve sheet paper base bulk and porosity, help improving the filling value and the air permeability of sheet paper base, and can improve the permeance property of sheet paper base.
The Study on Physical result of sheet paper base shows that along with squeeze pressure increases, the tensile strength of sheet paper base increases gradually, and tear index is on a declining curve, and bulk descends, and tightness rises, the permeability variation of sheet paper base.When squeeze pressure is 0MPa; Wetability Max value minimum (0.097s); T95 value minimum (0.442s), the lyophily performance and the permeance property of sheet paper base are best, help sheet paper base is coated with operation; Wetability Max value and t95 value increase along with the increase of squeeze pressure, and the water repelling property of sheet paper base and impermeabilisation ability increase.
Scanning electron microscope analysis is the result show; Low pressure squeeze power (＜0.2MPa) under the condition; Can significantly improve sheet paper base bulk and inner porosity, help improving the filling value and the air permeability of sheet paper base, and can improve the lyophily performance and the permeance property of sheet paper base.
On the basis of above-mentioned experimental analysis, combine the application sensory evaluation in present technique field to verify.Dipping extracts offal and offal, mistake and filters extract and the offal slag after impregnation process, offal slag; Offal slag, offal slag through defibrination, copy sheet, squeezing and dry sheet paper base; Offal extract and offal extract are mixed the back according to 1: 1 volume ratio to return as coating fluid and is coated onto on the thin section for tobacco paper substrate; The reconstituted tobacco that combines existing common process to prepare obtained offal sheet paper base is applied in the cigarette, carries out sensory evaluation by 7 specialty persons of smokeing panel test.Below choosing several Test Example describes:
Sample 1: the pressure of squeezing is 0MPa, sample 2: the pressure of squeezing is 0.2MPa, sample 3: the pressure of squeezing is 0.1MPa, sample 4: the pressure of squeezing is 0.4MPa; The pressure of squeezing is 0.5MPa.Other process term harmonizations of each sample.
The sensory evaluation result: the softer silk floss of sample 1 product flue gas, exquisiteness, flow velocity is medium, and long sense is general; Fragrance texture is more clear, and harmony and assorted gas do not have significant change, and the oral cavity is cleaner; Sample 2 sensory evaluation results: the soft silk floss of product flue gas, exquisiteness, flow velocity is slower, and long sense obviously increases; Fragrance texture is more clear, bright, pass through and send out, and harmony is better, has mint type note characteristic; Assorted gas is little, and the flue gas moisture feeling increases, and the oral cavity is clean, and global comfort gets a promotion.Sample 3 sensory evaluation results: the soft silk floss of product flue gas, exquisiteness, flow velocity is slower, and long sense obviously increases; Fragrance texture is clear, bright, pass through and send out, and harmony is fine, and mint type note characteristic is more obvious; Assorted gas is little, and the flue gas moisture feeling significantly increases, and the oral cavity is clean, and global comfort obviously promotes.Sample 4 sensory evaluation results: the soft silk floss of product flue gas, flow velocity is slow, and long sense obviously increases; Fragrance texture is more clear, and harmony is better, and mint type note characteristic is more obvious; Assorted gas is little, and the flue gas moisture feeling increases, and the oral cavity is clean, and global comfort gets a promotion.Sample 5 sensory evaluation results: the soft silk floss of product flue gas, flow velocity is very slow, and long sense significantly increases; Fragrance texture is more clear, and harmony is better, and mint type note characteristic is more obvious; Assorted gas is little, but burning and suction performance descend.In all sample examples, the pressure of squeezing is that the sample 3 of 0.1MPa has obtained comprehensive sensory evaluation optimum, and the sensory evaluation in 0.4MPa of the pressure of squeezing obtains conclusion preferably, and it is relatively poor to surpass the 0.4MPa sensory evaluation.Further verified previous experiments analysis result of the present invention.
Experiment is commercial offal of routine and offal with offal, offal picked at random from Guangdong China Tobacco Industry Co.,Ltd's raw materials for production.Offal and offal are refrigerated under 4 ℃ of conditions, and the pack equilibrium water conten is subsequent use.
(1) dipping extracts
Present embodiment extracts experiment to offal, offal single hop dipping to carry out in electric cooking pot (plain edition) ZT1-00/15L (logical rig for testing Co., Ltd produces in the Xingping City).
Offal extracts: offal dress pot amount is 1500g.By liquor ratio 1: 7 (mass ratio) the about 10000mL of water is joined in the digester earlier, be preheating to 60 ℃, add offal, build pot cover and be rotated boiling, behind 60 ℃ of insulation 100min, adopt dewaterer to carry out drying dehydration, equilibrium water conten supplies defibrination to use.
Offal extracts: the dress pot amount of offal is 1200g.By liquor ratio 1: 10 (mass ratio) the about 11000mL of water is joined in the digester earlier, be preheating to 70 ℃, add offal, build pot cover and be rotated boiling, behind 70 ℃ of insulation 60min, offal adopts dewaterer to carry out drying dehydration, and equilibrium water conten is subsequent use.
The present invention also can adopt existing three stage countercurrent extraction processes to extract offal and offal, and offal and offal extract the back through first order extraction, second level extraction and the third level respectively and get into defibrination workshop section.The third level extract adverse current that the third level obtains after extracting and adopting clear water to extract gets into the second level and floods extraction; Second level extract another mistake flows into the first order and extracts experiment; Last first order extract obtains coating fluid through carrying out evaporation and concentration after the preliminary treatment, is coated onto on the thin section for tobacco paper substrate in order to last returning.Three stage countercurrent extraction conditions are: offal: liquor ratio: 1: 7 (mass ratio), temperature: 80 ℃, the time: 40min; Offal: liquor ratio: 1: 10 (mass ratio), temperature: 80 ℃, the time: 30min.In three grades of leaching process, the process conditions of each grade are not made change.
(2) defibrination
Offal, the offal of step (1) after impregnation process carried out defibrination to be handled.Present embodiment carries out defibrination with offal, the offal of step (1) after impregnation process to be handled.The KRK-2500II high-density paste mill that offal, the offal of present embodiment after with impregnation process adopts Japanese KRK company to produce respectively carries out three sections defibrinations.First section grinding clearance (gap between mill Moving plate and the price fixing) is 0.4mm; Second section grinding clearance is 0.2mm; The 3rd section grinding clearance is 0.15mm; The refining concentration of three sections defibrinations is all 20% (mass percent concentration, the notion that can produce described solid content with reference to paper process);
The mill parameter of said first section defibrination is:
The mill parameter of said second section defibrination is:
The mill parameter of the 3rd section defibrination is with reference to the parameter of second section defibrination mill.
(3) copy sheet
Offal and offal obtain offal slurry and offal slurry respectively through after dipping and the defibrination.The ratio that adopts different offal slurry and offal to starch, join search and seize the thin section for tobacco paper substrate;
After slurry behind the defibrination prepares in proportion, adopt Austria to produce the quick handshcet former of PTI and copy the quantitative 70g/m that is
2The scraps of paper are also dry.90 ℃ of baking temperatures, drying time 12min, vacuum 0.09MPa.The scraps of paper are handled 24h down in iso standard constant temperature and humidity condition (relative humidity 50 ± 2% and 23 ± 1 ℃ of temperature), measure the paper substrate performance indications that prepare under different offal slurries and the offal slurry quality conditions of mixture ratios then.
(4) Continuous Flow Analysis
Offal after the extraction, offal further adopt dewaterer to carry out drying dehydration, and natural air drying is clayed into power with the plant pulverizer afterwards, collect 40～60 purpose samples and carry out the plant fiber material analysis, and other samples that grind are again through Cyclotec
TM1093 mill cigarette machines are clayed into power, and supply flow analysis to use.
Continuous Flow Analysis adopts Continuous Flow Analysis instrument AA3, and (SEAL AutoAnalyzer 3, SEAL Analytical Co. UK) detects.The mensuration of water-soluble sugar, total alkaloid, total nitrogen and chlorine adopts YC/T 159-2002, YC/T 160-2002, YC/T 161-2002 and YC/T 162-2002 standard to measure respectively in the offal.
(5) SEM (SEM) is observed
Carry out metal spraying after the thin section for tobacco paper substrate cutting with write by hand and handle, use SEM (Hitachi S-3700N) to observe then.
(6) flue gas analysis
The equipment that flue gas analysis is adopted is CERULEAN SM450 type 20 duct linear pattern smoking machines, is furnished with the COA205 co meter; Agilent 6890 gas chromatographs.The mensuration of TPM and tar adopts GB/T 19609-2004 to measure in the flue gas, and the mensuration of nicotine adopts YC/T 156-2001 standard to measure.All the other projects assay determinations are all undertaken by the respective country standard.
The variation of chemical substance was as shown in table 3 after offal and offal dipping extracted.Visible by table 3, after offal and the offal extraction, the benzene of offal-pure extract content drops to 3.67% from 6.79%, declines by a big margin; And the benzene of offal-pure extract content has only descended 1.06%, explains that offal still contains a large amount of solable matters through after extracting.Because it is lower to extract temperature; Lignin in offal and the offal, holocellulose almost are that chemical change does not take place; So after extracting along with the rising of recovery rate; The lignin of offal and offal, holocellulose content rise bigger relatively, and the holocellulose content of offal and offal has improved 12.4% and 21.37% respectively.After extracting in offal and the offal content of water-soluble sugar, total alkaloid and chlorine all be decline significantly; And content of total nitrogen changes not quite comparatively speaking; The recovery rate of offal and offal is respectively 26.7% and 45.05% after extracting, and the relative offal of offal is easy to extract more.Adopt the present embodiment process conditions extract after in offal and the offal the rising to relatively of stripping and holocellulose content of water-soluble component follow-up offal and offal carried out defibrination, copy sheet good condition is provided.
The mutation analysis result of chemical substance before and after table 3 offal and the offal dipping
Offal after extracting and offal are through three sections defibrinations, and the defibrination result is as shown in table 4.Visible by table 4, the defibrination yield of offal is higher, is 84.27%; And the defibrination yield of offal is 79.36%, and is lower comparatively speaking.It is that offal is in the defibrination process that the applicant analyzes main cause; The further stripping of water-soluble component meeting in the offal; And because the effect of defibrination; After the offal pulping in the slurry the shared ratio of fiber fines component very big, fiber fines is easy in the defibrination process, run off, and makes offal defibrination yield lower.The beating degree of offal slurry and offal slurry is respectively 31 ° of SR and 38 ° of SR, and the defibrination total energy consumption of offal exceeds 213kWh/t than the defibrination total energy consumption of offal
Slurry, explain that offal is easy to defibrination more than offal, more be prone to obtain higher beating degree under the identical defibrination condition.
Table 4 offal and offal defibrination result
Offal and offal change the ratio of offal slurry and offal slurry through after the dipping defibrination, join and copy the thin section for tobacco paper substrate, and table 5 is the physical property of the sheet paper base of gained under different offal slurries and the offal slurry conditions of mixture ratios.
The different proportionings with offal of table 5 offal are to the influence of paper substrate physical property
For tobacco stalk fibre, the offal fiber of gained is short and small after the offal defibrination, and water filtering performance is relatively poor, and the binding ability of offal slurry is poor, the offal slurry with the offal slurry join copy in, more be the role who has served as fiber fines and tiny component.And offal fiber fines component can be improved the fiber combination through 3 kinds of modes: specific bonding strength (effect of similar glue); The bonding area of cross fibers part (combining adding up of border); Combination quantity between the fiber (fiber furthers), the adding of the tiny component of offal can make offal slurry long fibre fraction produce some crooked and distortion, the fiber that can further, the tightness of increase sheet paper base.
According to the mapping of the data in the table 5, see accompanying drawing 2.Visible by accompanying drawing 2, in the thin section for tobacco paper substrate, along with offal is starched the increase of shared proportioning, the tensile index of sheet paper base and tear index are linear increase trend.Influence the most important factor of tensile strength and be adhesion and the intensity of fiber self between the fiber, and fibre length is the key factor that influences tearability.Join in the process of copying at offal and offal, along with the reduction of tobacco stalk fibre proportioning, the content of sheet paper base medium-length fibre reduces, and adds the offal slurry that binding ability is relatively poor, and the anti-intensity index of gained sheet paper base and tear index descend very soon.
Can be known that by table 5 adding proportion of offal slurry increases, the bulk of sheet paper base is on a declining curve.Main cause is that the adding proportion of offal slurry increases; Because the offal slurry has the characteristic of similar fiber fines; Make it in paper substrate, be prone to be distributed between the space of fiber and fiber, make it not produce contribution, thereby cause the bulk of gained thin section for tobacco paper substrate to descend the bulk that becomes paper.Offal that size is different with homogeneity and offal slurry have formed the net with certain paper structure (sheet paper base) that thickness, tightness and porosity have nothing in common with each other, and then have influenced the air permeability of paper under certain condition of manufacturing paper with pulp.Shown the influence of the different proportionings with offal of offal to the sheet paper base air permeability in the table 5: the offal slurry that adds in the sheet paper base increases, and the air permeability of sheet paper base descends.The less sheet paper base of offal slurry has only the offal long fibre interlaced, in conjunction with not tight, the space is more; Contain the sheet paper base of more (offal slurry) fiber fines, fiber combining is tightr, and the space is less, and fiber fines is filled in the adjacent long stapled space, plays " bridge formation " effect.Because fiber fines is soft and thin, can not stop up network of fibers, also have the ability that fibrillar meshwork structure is shunk on the contrary, dwindle the distance between the fiber, promote the tightness of sheet paper base, thereby the air permeability of sheet paper base is descended.The physical property analysis result of sheet paper base shows; Decline (the shared ratio of offal rises relatively) along with offal proportioning in the thin section for tobacco paper substrate; The tensile index of thin section for tobacco paper substrate and tear index all descend very fast, and bulk descends to some extent, and air permeability is on a declining curve.
Accompanying drawing 3 is the SEM figure of the thin section for tobacco paper substrate of gained under different offals and the offal conditions of mixture ratios.In the accompanying drawing 3, a, b, c, d, e, f are respectively 100% offal, 90% offal: 10% offal, 80% offal: 20% offal, 70% offal: 30% offal, 60% offal: 40% offal, 50% offal: the SEM figure of the thin section for tobacco paper substrate of 50% offal gained; Above percentage is all mass percent.In accompanying drawing 3; High-visible by a, b, three figure of c; Tobacco stalk fibre is to occur significantly dividing silk, brooming under 31 ° of SR conditions in beating degree, and owing to the shared ratio of offal slurry is little, the thin section for tobacco paper substrate becomes paper more loose; Offal slurry major part is filled between the tobacco stalk fibre, and the offal slurry that occurs on thin section for tobacco paper substrate surface seldom.Can find out that from d, e, three figure of f the ratio shared along with the offal slurry increases (more than 30%), offal slurry and offal slurry combine fully; The offal fiber size is little, and specific area is big, interfibrous interweave area and also increase relatively of adhesion; The tightness of thin section for tobacco paper substrate increases gradually; The offal slurry not only is filled in the tobacco stalk fibre, but also connects through hydrogen bond, is attached to thin section for tobacco paper substrate surface; And along with the increase of offal slurry proportion, the offal slurry of sheet paper base surface attachment increases thereupon.Can find out from the SEM map analysis of sheet paper base; Tobacco stalk fibre is to occur significantly dividing silk, brooming phenomenon under 31 ° of SR conditions in beating degree; Offal is starched ratio shared in sheet paper base more than 30%, and offal slurry and offal slurry interweave very tight, and formed sheet paper base tightness increases.The chemical composition analysis result of the thin section for tobacco paper substrate of gained is as shown in table 6 under different offals and the offal conditions of mixture ratios.
The different proportioning sheet paper base of table 6 chemical composition analysis result
From table 6; The flue gas analysis result of sheet paper base shows that the offal proportion increases in the thin section for tobacco paper substrate, and the tar content in the sheet paper base cigarette smoke, TPM content and carbon monoxide content increase; Puff number also is increase trend, and the content of nicotine changes hardly.Offal and offal are in the defibrination process; Offal and offal become littler tobacco stalk fibre of volume and offal fiber; These fiber specific surface area are more much bigger than original offal and offal; Add these fibers and absorbed the heat that produces in the defibrination process; Make the soluble component in offal and the offal be easy to stripping in water more, these soluble components run off in the plain boiled water in the process of manufacturing paper with pulp in the thin section for tobacco paper substrate process of manufacturing paper with pulp, and cause all having significantly after water-soluble sugar, total alkaloid, chlorion and content of total nitrogen are all extracted than dipping in the thin section for tobacco paper substrate of gained descending.Wherein, the water-soluble sugar in the thin section for tobacco paper substrate and the content of chlorion are very low, even are zero; The proportion relation of content and offal and the offal of total alkaloid in the thin section for tobacco paper substrate is little, and stable content is between 0.20%～0.23%; And content of total nitrogen is in rising trend along with the increase of offal proportion in sheet paper base.
The preparation of embodiment 3 reconstituted tobaccos
Experiment is commercial offal of routine and offal with offal, offal picked at random from Guangdong China Tobacco Industry Co.,Ltd's raw materials for production.Offal and offal are refrigerated under 4 ℃ of conditions, and the pack equilibrium water conten is subsequent use.
(1) extracts offal and offal
Adopt three stage countercurrent extraction processes to extract offal and offal, process flow diagram is seen shown in the accompanying drawing 4.Offal and offal extract through first order extraction, the second level respectively and third level extraction back gets into defibrination workshop section.The third level extract adverse current that the third level obtains after extracting and adopting clear water to extract gets into the second level and floods extraction; Second level extract another mistake flows into the first order and extracts experiment; Last first order extract obtains coating fluid through carrying out evaporation and concentration after the preliminary treatment, is coated onto on the thin section for tobacco paper substrate in order to last returning.Three stage countercurrent extraction conditions are: offal: liquor ratio: 1: 7 (mass ratio), temperature: 80 ℃, the time: 40min; Offal: liquor ratio: 1: 10 (mass ratio), temperature: 80 ℃, the time: 30min.In three grades of leaching process, the process conditions of each grade are not made change.
Offal and offal extract mix subsequent use as follow-up coating fluid by 1: 1 volume ratio; Offal slag and offal slag carry out defibrination respectively to be handled.
(2) defibrination
Offal, the offal slag of step (1) after impregnation process carried out defibrination handle, obtain offal slurry and offal slurry.The KRK-2500II high-density paste mill that present embodiment adopts Japanese KRK company to produce carries out three sections defibrinations, and the concentration of defibrination is 20%.
(3) copy sheet
Offal slurry and offal are starched the mass ratio according to 70: 30, join and copy, adopting Austria's quick handshcet former of product PTI to copy quantitatively is the 70g/m2 scraps of paper and dry.90 ℃ of baking temperatures, drying time 12min, vacuum 0.09MPa.The scraps of paper are handled 24h down in iso standard constant temperature and humidity condition (relative humidity 50 ± 2% and 23 ± 1 ℃ of temperature).
(4) squeezing and drying are prepared into sheet paper base
The pressure of said squeezing is 0.1MPa, and dry temperature is 105 ℃, and the total time of squeezing is about 7min.
(5) coating
Offal and offal extract that step (1) is prepared are to carry out evaporation and concentration according to 1: 1 (volume ratio) mixing to obtain said coating fluid.Other steps are with reference to routine techniques.The reconstituted tobacco that combines existing common process to prepare obtained offal sheet paper base is applied in the cigarette, carries out sensory evaluation by 7 specialty persons of smokeing panel test.The soft silk floss of product flue gas, exquisiteness, flow velocity is slower, and long sense obviously increases; Fragrance texture is clear, bright, pass through and send out, and harmony is fine, and mint type note characteristic is more obvious; Assorted gas is little, and the flue gas moisture feeling significantly increases, and the oral cavity is clean, and global comfort obviously promotes.
Claims (4)
1. the preparation method of an offal offal system reconstituted tobacco adopts paper process to prepare, and dipping extracts offal and offal, mistake and filters extract and the offal slag after impregnation process, offal slag; Offal slag, offal slag through defibrination, copy sheet, squeezing and dry sheet paper base; Extract returned as coating fluid be coated onto on the thin section for tobacco paper substrate; The pressure that it is characterized in that said squeezing is 0～0.4MPa.
2. according to the preparation method of the said offal of claim 1 offal system reconstituted tobacco, the pressure that it is characterized in that said squeezing is 0～0.2MPa.
3. according to the preparation method of claim 1 or 2 said offal offal system reconstituted tobaccos, the pressure that it is characterized in that said squeezing is 0.1MPa.
4. according to the preparation method of the said offal of claim 3 offal system reconstituted tobacco, the total time that it is characterized in that said squeezing is 7 minutes.
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| CN102894462A (en) * | 2012-10-11 | 2013-01-30 | 湖北中烟工业有限责任公司 | Method for improving water absorbability of reconstituted tobacco substrates |
| CN103054189A (en) * | 2012-12-29 | 2013-04-24 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick of composite moistening plants and preparation method thereof |
| CN103110185A (en) * | 2012-12-29 | 2013-05-22 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick for compositing tobacco shreds and preparation method thereof |
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| CN103892439A (en) * | 2014-04-17 | 2014-07-02 | 浙江中烟工业有限责任公司 | Method for producing reconstituted tobacco through tobacco scraps with diameter smaller than 1 mm and application of reconstituted tobaccos |
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| CN103054189A (en) * | 2012-12-29 | 2013-04-24 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick of composite moistening plants and preparation method thereof |
| CN103110185A (en) * | 2012-12-29 | 2013-05-22 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick for compositing tobacco shreds and preparation method thereof |
| CN103284327A (en) * | 2012-12-29 | 2013-09-11 | 广东中烟工业有限责任公司 | Tobacco paper filter stick combining bamboo fiber and preparation method of tobacco paper filter stick |
| CN103445295A (en) * | 2012-12-29 | 2013-12-18 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter rod made from composite aroma-enhancing plants and preparation method of filter rod |
| CN103622157A (en) * | 2012-12-29 | 2014-03-12 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick containing herbaceous plants and manufacturing method thereof |
| CN103110185B (en) * | 2012-12-29 | 2015-02-11 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick for compositing tobacco shreds and preparation method thereof |
| CN103284327B (en) * | 2012-12-29 | 2015-02-11 | 广东中烟工业有限责任公司 | Tobacco paper filter stick combining bamboo fiber and preparation method of tobacco paper filter stick |
| CN103622157B (en) * | 2012-12-29 | 2015-03-18 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick containing herbaceous plants and manufacturing method thereof |
| CN103054189B (en) * | 2012-12-29 | 2015-04-15 | 广东中烟工业有限责任公司 | Ternary tobacco fiber paper filter stick of composite moistening plants and preparation method thereof |
| CN103892439A (en) * | 2014-04-17 | 2014-07-02 | 浙江中烟工业有限责任公司 | Method for producing reconstituted tobacco through tobacco scraps with diameter smaller than 1 mm and application of reconstituted tobaccos |
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